misc(clickhouse): Define nil primary key for events_enriched table

Author: vincent-pochet

app/models/clickhouse/events_enriched.rb

@@ -3,6 +3,7 @@
 module Clickhouse
   class EventsEnriched < BaseRecord
     self.table_name = "events_enriched"
+    self.primary_key = nil
   end
 end
 

app/models/clickhouse/events_enriched_expanded.rb

@@ -3,6 +3,7 @@
 module Clickhouse
   class EventsEnrichedExpanded < BaseRecord
     self.table_name = "events_enriched_expanded"
+    self.primary_key = nil
   end
 end